Can't post a link in my first post, so I'll waste time making a double post?
It's basically the only organized F/SN rp I've seen. So far the story is still in its early stages, a few masters and servants have died but nothing a new person needs to really know. Everything that has happened so far could be summarized in a short to-the-point paragraph.
Basically in this holy grail war there's an unlimited amount of servants due to some changes with the greater grail, and there can be more than one servant of each class.